[chirp_devel] How to brick an FT-60

[Jens J.]

Did you say that although the radio appears unresponsive,

will it still "act" as if it will clone? If so, will it upload or download, or both?

Also,
Will it visibly go into alignment mode?
To enter the Alignment mode: 
	1. Press and hold in the MONI and LAMP switches turn- 
ing the radio on. Once the radio is on, release these 
two switches. 
	2. Press the keypad in the following sequence: 
[(MHz)] [0( )SET]
[1(SQ TYP)] [7(P1)] [V/M(PRI)] 
	3. Press the [F/W] key to cause “A0 REF.xxx” to appear on
the display for five seconds, this signifies that the trans-
ceiver is now in the “Alignment Mode.”
... 
I would be curious to examine your "bad" image vs a previous "good" image, vs even one you might have taken much, much earlier in your development process.
Can you share them privately with me directly off-list?

-Jens


________________________________
 From: "chirp.cordless at xoxy.net" <chirp.cordless at xoxy.net>
To: chirp_devel at intrepid.danplanet.com 
Sent: Saturday, March 22, 2014 10:32 PM
Subject: Re: [chirp_devel] How to brick an FT-60
 

I think not. The radio state gets saved in flash every power off, at least.
Kind of dwarfs a few hundred clone writes. And the radio was fairly new
as these things go. And modern flash is usually good for 10K - 100K writes.
But it's plausible for the first radio's failure. Part of a spectrum of stuff
related to what I said might be abuse, which also includes a lot of
serial cable in & out, knob twiddling, ... 

But the new one died the day it was purchased, after two OK clone writes.
On the third, with the same image that killed the first one, it died
with the same symptoms. I'm not buying flash write wearout.

The bits did it.

-dan

On Mar 22, 2014, at 6:02 PM, jon - jon at jonshouse.co.uk wrote:
> 
> I would try de-soldering the 24C256 and soldering a new one in.  Most
> probable cause of its death is passing the maximum write cycles for the
> eeprom. With luck the yaesu firmware is bright enough to initialise a
> blank one ..... with luck !
> 
> Jon


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